Fix and test register upload + api strategies

Author: adimiz1

cloudinary-core/src/main/java/com/cloudinary/Cloudinary.java

@@ -20,7 +20,7 @@
 @SuppressWarnings({"rawtypes", "unchecked"})
 public class Cloudinary {
 
-    private static List<String> UPLOAD_STRATEGIES = new ArrayList<String>(Arrays.asList(
+    public static List<String> UPLOAD_STRATEGIES = new ArrayList<String>(Arrays.asList(
             "com.cloudinary.android.UploaderStrategy",
             "com.cloudinary.http5.UploaderStrategy"));
     public static List<String> API_STRATEGIES = new ArrayList<String>(Arrays.asList(
@@ -59,14 +59,14 @@ public SearchFolders searchFolders() {
 
     public static void registerUploaderStrategy(String className) {
         if (!UPLOAD_STRATEGIES.contains(className)) {
-            UPLOAD_STRATEGIES.add(className);
+            UPLOAD_STRATEGIES.add(0, className);
         }
 
     }
 
     public static void registerAPIStrategy(String className) {
         if (!API_STRATEGIES.contains(className)) {
-            API_STRATEGIES.add(className);
+            API_STRATEGIES.add(0, className);
         }
     }
 

cloudinary-core/src/test/java/com/cloudinary/test/CloudinaryTest.java

@@ -1464,6 +1464,20 @@ public void testDownloadBackedupAsset() throws UnsupportedEncodingException, URI
         assertNotNull(params.get("timestamp"));
     }
 
+    @Test
+    public void testRegisterUploaderStrategy() {
+        String className = "myUploadStrategy";
+        Cloudinary.registerUploaderStrategy(className);
+        assertEquals(className, Cloudinary.UPLOAD_STRATEGIES.get(0));
+    }
+
+    @Test
+    public void testRegisterApiStrategy() {
+        String className = "myApiStrategy";
+        Cloudinary.registerAPIStrategy(className);
+        assertEquals(className, Cloudinary.API_STRATEGIES.get(0));
+    }
+
     private void assertFieldsEqual(Object a, Object b) throws IllegalAccessException {
         assertEquals("Two objects must be the same class", a.getClass(), b.getClass());
         Field[] fields = a.getClass().getFields();